A dozen employees said they watched a "large, disc-shaped craft" hover above a Colorado concert venue and then vanish. 

"What's even crazier is that as soon as we all started noticing it and stopped what we were doing to pay attention to it, the craft tipped at an angle and slowly started moving belly-first to the east," an employee reported to the National UFO Reporting Center about the June 5 sighting at the Red Rocks Ampitheatre in Morrison.

"Then it started fading away until it was invisible. It didn't shoot off into the distance. It simply dissolved into the ether. We all watched it vanish."

The "silent" hovering object was long – about the size of a "three-story office building" – with three levels of windows and lights, according to the National UFO Reporting Center. 

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"One of our coworkers suddenly said to us, ‘Hey, what is that over there? It looks like a spaceship,’" the anonymous reporting employee wrote. 

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"We all turned to look in the direction he was pointing and sure enough, there was a UFO hovering about half a mile to a mile north of Red Rocks."

They all turned their attention to the strange object in the sky, and it suddenly "fade(d) into nothing as soon as it knew it was being watched," according to the National UFO Reporting Center post. 

That's when it "simply dissolved into the ether."

"A dozen of us saw it. We all kept asking each other, ‘Are you seeing this too?’ It was a resounding, ‘Yes,’ from everyone in the group," the worker wrote in the post. 

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"This was not a plane. It wasn't a satellite, a drone, or anything like that. There was no mistaking what this was."

The way it appeared to "simply dissolve into the ether" is similar to a potential alien encounter reported last April in Las Vegas, when "beings" seemingly vanished. 

Scott Roder, a veteran crime scene reconstruction analyst, broke down the Las Vegas witnesses' video and outlined two "smokey filters" that didn't match the background.

He theorized that "the beings" used some sort of "cloaking mechanism" to "shield" themselves from the curious family and, later, responding police officers. 

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In one second of real time, there are 30 frames that show a "head… with smoke around it," which Roder called "some sort of cloaking device," moving into the top right corner of the video and peering over the fence. 

"I applied the same principles that I would apply to any kind of homicide investigation," said Roder, who testified in cases like Oscar Pistorious' murder trial. 

"At this particular time, with what we've seen here, is proof of a couple of things. That these entities… are real. They're there. This is not fake. This is not a fraud."

There are believers, skeptics and people on the fence about extraterrestrial life, but there's a growing interest in UFOs, or UAPs (unidentified anomalous phenomena), as they're referred to today. 

Roder worked with Jim Quirk, a reporter who runs the Extraterrestrial Reality podcast and who shared videos and images with Fox New Digital, to recreate the scene in the Las Vegas backyard on April 30, 2023.

Roder wants to open it up to "peer review."

"Bring it on," he said. 

"I want to open this up. Everything that we've done. I'm opening it up for peer review… I'm willing to hear what professionals in my field have to say about this and open it up. And if I'm wrong, you know, I'll admit it," Roder said, although he's certain he's right.

"These two items, these two beings, are in the real world environment with the Kenmore family. That's a fact," Roder said. "Now the question is, Who are they? Where are they from and what do they want? That's where the conversation goes."